Insulator.



Patented Oct. 2l, |902.

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CLAYTON HOBERT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGNMENTS, OF SEVEN-TENTHS TO W. STORM MILLER AND EDWARD S. KERPER, OFREADING, PENNSYLVANIA.

INSULATOR.

SPECIFICATION forming part of Letters Patent No. 711,629, dated October21, 1902.

Application filed March 6, 1902.

To a/ZZ whom it may concern.-

Be it known that I, CLAYTON HoBERT, a citizen of the United States, anda resident of the city and county of Philadelphia, lState ofPennsylvania, have invented certain new and useful Improvements inInsulators, of which the following is a specification.

My invention relates to improvements in insulators for electric wires;and the object of my invention is to furnish an improved means forsecuringthe wire to the insulator without the use of the usualtying-wires.

In the accompanying drawings, forming part of this specification, and inwhich similar letters of reference indicate similar parts throughout theseveral views, Figure l is a side elevation, partly in section, of aninsulator embodying my improved means for carrying and for locking thewire in place; Fig. 2, a front elevation of Fig. 1; Fig. 3, a frontelevation of Fig. l, the wire and locking device being removed; Fig. 4,a side elevation of the locking device.

a, is an insulator, formed of glass or other material, furnished uponone side or both sides with a T-shaped slot b.

c represents the wires to be carried and insulated by the insulator, andd the device for locking the wire in the slot b. The throat e of theslot b is just wide enough to permit the Wire c to pass through it, andthe bottom of the slot is preferably furnished with a groove f, of lessdiameter than the wire c, across the top of which the wire rests,although it will be understood that this groove may be done away with, ifdesired. The Wire having been placed in the slot the keeper el, whichSerial No. 96,937. (No model.)

consists,preferably, of a tapered plug of wood, rubber, or othersuitable material, preferably circular in cross-section, but notnecessarily of this form, is forced in the slot over the wire andengages the top of the slot and the top of the wire and securely holdsthe latter in place. The keeper, if made of wood, is preferably coatedwith oil or paran to protect it from dampness.

The ends of the slot b are preferably flared, as shown, to facilitatethe entrance of the keeper to give the Wire play and to give gooddrainage.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. An insulator furnished upon its side or sides witha slot adapted to receive a Wire, the bottom of said slot beingfurnished with a groove of less width than the diameter of the Wire.

2. An insulator furnished upon its side or sides with a slot adapted toreceive a wire, the bottom of said slot being furnished with a groove ofless diameter than the wire, the ends of said slot flaring outwardly.

3. In combination, an insulator furnished upon its side or sides with aslot adapted to receive a wire, the bottom of said slot being of lesswidth than the diameter of the wire, and a keeper of circularcross-section adapted to enter said slot above said wire to force saidwire against the lower side of said slot.

CLAYTON HOBERT.

Witnesses:

GEORGE W. SELTZER, CHARLES A. RUTTER.

